Did Ky commit the crime? Yes, in self defence (according to him). Should he have to face responsibility for the loss of human life? yes. Should someone have to spend 20 years in prison for self defence (again, allegedly, I know very little about this case)? no, especially if there are no violent priors. Black trans people live incredibly dangerous existences. trans women of colour, for example, have a 1 in 8 chance of being murdered. Being a black trans man doesn't suddenly make your life any easier (though I don't have specific numbers for trans men), and as you being to pass as a man, it means you inherit the way that society treats black men (i.e. poorly).
I don't debate it. A prosecutor's world is pretty black and white. Can I convict this person regardless of the nuances of what they did? What is the maximum sentence that I can get this person convicted of? The only just outcome is to get the maximum sentence that a prosecutor can convict on. Did they talk to the cops? Great, they are now fucked. First base of not ending up in jail is not talking to the cops, talking is all you need to do leave yourself irrevocably fucked. If Ky acted in self defense he should have let his lawyer make that case. If it was self defense I don't know that he has any responsibility in the guys death. Being a black man, or black trans man is definitely going to make life harder, especially when it comes to being involved in murder in the south. Putting your murder case on a silver platter for the DA by talking is suicidal.